Hello/Hi/Greetings,

Anyway, I repeat the question.
Why is it that instead of some pictures on the screen, only its name is displayed, even though the picture is physically in the folder and can be downloaded?
Why is it impossible to change the thumbnail of the album from the available images, you can only use the ones that you just uploaded.
Explain clearly about folder permissions.
All possible options have already been checked, but errors still appear.

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